How big will it be? Find out before you record.
Estimate storage for any resolution, frame rate, and codec. Compare H.264 versus HEVC side by side so you know exactly what each setting costs.
Estimates based on typical iPhone recording settings. Actual file sizes may vary depending on scene complexity and device model.
Three knobs, one bill.
4K has 4x more pixels than 1080p. More pixels means more data per frame and larger files, linearly.
60fps captures twice the frames of 30fps. Doubling frames roughly doubles size at the same bitrate target.
HEVC (H.265) is ~50% smaller than H.264 at the same visual quality. Every iPhone since iPhone 7 records HEVC by default.
| Setting | Per minute | 10 min | 1 hour |
|---|---|---|---|
| 720p @ 30fps | 40 MB | 400 MB | 2.4 GB |
| 1080p @ 30fps | 60 MB | 600 MB | 3.6 GB |
| 1080p @ 60fps | 90 MB | 900 MB | 5.4 GB |
| 4K @ 24fps | 135 MB | 1.35 GB | 8.1 GB |
| 4K @ 30fps | 170 MB | 1.7 GB | 10.2 GB |
| 4K @ 60fps | 400 MB | 4 GB | 24 GB |
HEVC sizes are approximately half these numbers.
Common questions.
- How accurate is this calculator?
- Estimates are based on typical iPhone recording bitrates. Actual file sizes vary by ~15% depending on scene complexity. Static scenes compress better than fast action.
- Why is 4K 60fps so much larger than 4K 30fps?
- 60fps captures twice as many frames per second. Combined with 4K resolution, the camera produces enormous amounts of data. A 10-minute 4K 60fps clip can easily exceed 4 GB.
- What's the difference between H.264 and HEVC?
- HEVC (H.265) is a newer codec that produces files ~50% smaller than H.264 with no visible quality loss. iPhones since the iPhone 7 record in HEVC by default.
- How can I reduce my video file sizes?
- Record at a lower resolution or frame rate, or compress existing videos from H.264 to HEVC with HEVCut. That typically saves 50-70% with no visible quality drop.
- Does HEVC play on all devices?
- HEVC plays on all iPhones since iPhone 7, every recent Mac, most Android phones from 2018 onward, and Windows 10/11. Older devices can use a free player like VLC.
Free up space. Keep your memories.
HEVCut runs on iPhone, iPad and Mac. Everything stays on-device, offline. Try a few compressions before committing to Pro.
Try it on the App Store